(Atlantic City, NJ) In celebration of its 25th anniversary, Professional Sports Authenticator (www.PSAcard.com) is giving away autographed collectibles from New York Yankees legends Babe Ruth, Joe DiMaggio, Mickey Mantle and Derek Jeter at the 2016 National Sports Collectors Convention.

“We have big things in store for our 25th anniversary, highlighted by our sweepstakes for autographs from some of the most iconic Yankees throughout the decades,” said PSA President Joe Orlando. “We chose the Yankees because of New York’s proximity to Atlantic City, and of course, because the club holds such wide appeal among collectors.”

PSA is also offering a copy of the book, The 100 Greatest Baseball Autographs, to those who sign up for any level of the Collectors Club during the show. The book chronicles the top baseball signatures in the hobby through expert narratives and vivid artwork.

Joining members of the Collectors Club will also receive a commemorative Ty Cobb card, inspired by the 2016 “Lucky 7 Find” of 1909-11 T206 Ty Cobb with Ty Cobb back cards. The replica cards, each encapsulated by PSA, are limited to 777 and available only while supplies last. Cards are limited to one per person.

Recipients of The 100 Greatest Baseball Autographs will have the opportunity to have their books signed by the book’s authors, Tom and Ellen Zappala and John Molori. Collectors who have their book signed will also be entered into a drawing for a framed and signed Ted Williams 16x20 photo.

The book signing will take place on Friday, August 5, from 11 a.m. to 4 p.m., and Saturday, August 6, from 11 a.m. to 4 p.m.

“This book, complete with terrific exemplars and eye-catching imagery, is an excellent addition to any collector’s library. We thought it would be great to tie one of the top 20 autographs of all-time, Ted Williams, into the book signing. And no book on autographs is complete without autographs from the authors,” said Orlando.

While supplies last, visitors can also obtain a complimentary VIP bag and a copy of a special "National" edition of Sports Market Report (SMR) magazine, the authoritative monthly price guide that features useful information about trading cards, memorabilia and other collectibles.

On-site grading will be offered from Wednesday, August 3, through Sunday, August 7, at 10 a.m. Take home submissions will also be accepted.

PSA/DNA experts will be on-site offering a $10 authentication special for signatures obtained at the show. PSA/DNA will accept submissions from Wednesday, August 3, until approximately 2 p.m. on Sunday, August 7. Visitors are encouraged to verify times with PSA representatives at the show.

A complete breakdown of show times, dates, details on the sweepstakes and further details on PSA promotions and activities can be found at www.PSAcard.com/National.

PSA is the world's largest trading card, autograph and memorabilia authentication and grading service. Since 1991, PSA experts have examined and certified over 26 million collectibles with a combined value of over $1 billion.